Identify each of the following elements as a metal, a nonmetal, or a metalloid:a. located in Group 2A (2)

Verified step by step guidance

1. Identify the periodic table group number for Group 2A, which is also known as Group 2.
2. Recognize that Group 2 elements are called alkaline earth metals.
3. Recall that metals are typically shiny, good conductors of heat and electricity, and are malleable and ductile.
4. Understand that all elements in Group 2A (2) are metals.
5. Conclude that any element located in Group 2A (2) is classified as a metal.

Key Concepts

Periodic Table Groups

The periodic table is organized into columns called groups, which share similar chemical properties. Group 2A, also known as Group 2, contains alkaline earth metals, which are characterized by having two electrons in their outermost shell. Understanding the group classification helps in identifying the elemental properties and their reactivity.

Metals, Nonmetals, and Metalloids

Elements are categorized as metals, nonmetals, or metalloids based on their physical and chemical properties. Metals are typically shiny, conductive, and malleable, while nonmetals are usually dull, insulative, and brittle. Metalloids exhibit properties of both metals and nonmetals, making them unique in their behavior and applications.

Alkaline Earth Metals

Alkaline earth metals are the elements found in Group 2A of the periodic table, including beryllium, magnesium, calcium, strontium, barium, and radium. These metals are known for their reactivity, especially with water, and they typically form +2 cations. Recognizing these elements as metals is crucial for understanding their role in chemical reactions and compounds.